package io;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class FOSDemo {
    public static void main(String[] args) throws IOException {

        File file = new File("fos.txt");
        FileOutputStream fos = new FileOutputStream("fos.txt");
        fos.write(97);
        System.out.println("完毕");
        fos.close();

    }
}
